Tremec Parts manual in pdf format gives detailed info on parts and how to dismantle/assemble.

Note: the tailhousing has the facility for a speedo drive. The gearbox you are using however may not have the drive gear for the speedo, in which case a core plug will need to be fitted to seal up the gearbox.

We also stock Slip yokes for the above gearbox if you need to fabricate a conversion propshaft